Overview
overview
7Static
static
3VirusShare...8f.exe
windows7-x64
7VirusShare...8f.exe
windows10-2004-x64
7$PLUGINSDI...is.dll
windows7-x64
3$PLUGINSDI...is.dll
windows10-2004-x64
3ffRichMedi...ion.js
windows7-x64
1ffRichMedi...ion.js
windows10-2004-x64
1ff/chrome/...757.js
windows7-x64
1ff/chrome/...757.js
windows10-2004-x64
1ff/chrome/...ion.js
windows7-x64
1ff/chrome/...ion.js
windows10-2004-x64
1ie/RichMed...57.dll
windows7-x64
6ie/RichMed...57.dll
windows10-2004-x64
6uninstall.exe
windows7-x64
7uninstall.exe
windows10-2004-x64
7$PLUGINSDI...is.dll
windows7-x64
3$PLUGINSDI...is.dll
windows10-2004-x64
3Analysis
-
max time kernel
135s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
04-02-2024 15:46
Static task
static1
Behavioral task
behavioral1
Sample
VirusShare_98a9df22205600f9687c7d7c28ba208f.exe
Resource
win7-20231215-en
windows7-x64
Behavioral task
behavioral2
Sample
VirusShare_98a9df22205600f9687c7d7c28ba208f.exe
Resource
win10v2004-20231215-en
windows10-2004-x64
Behavioral task
behavioral3
Sample
$PLUGINSDIR/aminsis.dll
Resource
win7-20231129-en
windows7-x64
Behavioral task
behavioral4
Sample
$PLUGINSDIR/aminsis.dll
Resource
win10v2004-20231222-en
windows10-2004-x64
Behavioral task
behavioral5
Sample
ffRichMediaViewV1release2757chaction.js
Resource
win7-20231129-en
windows7-x64
Behavioral task
behavioral6
Sample
ffRichMediaViewV1release2757chaction.js
Resource
win10v2004-20231215-en
windows10-2004-x64
Behavioral task
behavioral7
Sample
ff/chrome/content/ffRichMediaViewV1release2757.js
Resource
win7-20231215-en
windows7-x64
Behavioral task
behavioral8
Sample
ff/chrome/content/ffRichMediaViewV1release2757.js
Resource
win10v2004-20231215-en
windows10-2004-x64
Behavioral task
behavioral9
Sample
ff/chrome/content/ffRichMediaViewV1release2757ffaction.js
Resource
win7-20231215-en
windows7-x64
Behavioral task
behavioral10
Sample
ff/chrome/content/ffRichMediaViewV1release2757ffaction.js
Resource
win10v2004-20231215-en
windows10-2004-x64
Behavioral task
behavioral11
Sample
ie/RichMediaViewV1release2757.dll
Resource
win7-20231215-en
windows7-x64
Behavioral task
behavioral12
Sample
ie/RichMediaViewV1release2757.dll
Resource
win10v2004-20231215-en
windows10-2004-x64
Behavioral task
behavioral13
Sample
uninstall.exe
Resource
win7-20231215-en
windows7-x64
Behavioral task
behavioral14
Sample
uninstall.exe
Resource
win10v2004-20231222-en
windows10-2004-x64
Behavioral task
behavioral15
Sample
$PLUGINSDIR/aminsis.dll
Resource
win7-20231129-en
windows7-x64
Behavioral task
behavioral16
Sample
$PLUGINSDIR/aminsis.dll
Resource
win10v2004-20231215-en
windows10-2004-x64
General
-
Target
ie/RichMediaViewV1release2757.dll
-
Size
85KB
-
MD5
9a007a7a3ac50634aa58da5b685cea75
-
SHA1
2d6baca6e7f510b1c73256bc60a94549f3b3a965
-
SHA256
39b15f1d7ea5532f3b31e0eb6052ba1a426d824af317c47473b749aebec33596
-
SHA512
9ad9272c06ed70adf54e5ac9992870e1fc15505bbda3dcb36e34c9ad627c578e8a4ba5038e5e214c0480f6b4b36b3f2a08b657dbebadb47ddb44217c5acfd04f
-
SSDEEP
1536:7hMWCsgyMIwP/t6hp1ZcTkrChDCTfLlQxxAKS:iWKyMIwP16hp1+DgaxxA3
Malware Config
Signatures
-
Installs/modifies Browser Helper Object 2 TTPs 3 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{ca597a82-2168-4960-8601-0ca097cec9b1}\ = "RichMediaViewV1release2757" regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{ca597a82-2168-4960-8601-0ca097cec9b1}\NoExplorer = "1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{ca597a82-2168-4960-8601-0ca097cec9b1} regsvr32.exe -
Modifies registry class 34 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{22C546B3-94E5-44F4-9D04-A0E957A2CBE4}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{22C546B3-94E5-44F4-9D04-A0E957A2CBE4} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{22C546B3-94E5-44F4-9D04-A0E957A2CBE4}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ca597a82-2168-4960-8601-0ca097cec9b1}\Version regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CB68B141-87AD-4254-8C82-40FBC02E9C4F}\1.1\FLAGS\ = "0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ca597a82-2168-4960-8601-0ca097cec9b1}\Version\ = "1.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CB68B141-87AD-4254-8C82-40FBC02E9C4F} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CB68B141-87AD-4254-8C82-40FBC02E9C4F}\1.1\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release2757.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ca597a82-2168-4960-8601-0ca097cec9b1}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ca597a82-2168-4960-8601-0ca097cec9b1}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release2757.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CB68B141-87AD-4254-8C82-40FBC02E9C4F}\1.1\ = "RichMediaViewV1release2757Lib" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CB68B141-87AD-4254-8C82-40FBC02E9C4F}\1.1\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CB68B141-87AD-4254-8C82-40FBC02E9C4F}\1.1\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ca597a82-2168-4960-8601-0ca097cec9b1} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ca597a82-2168-4960-8601-0ca097cec9b1}\TypeLib\ = "{cb68b141-87ad-4254-8c82-40fbc02e9c4f}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CB68B141-87AD-4254-8C82-40FBC02E9C4F}\1.1 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CB68B141-87AD-4254-8C82-40FBC02E9C4F}\1.1\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{22C546B3-94E5-44F4-9D04-A0E957A2CBE4}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{22C546B3-94E5-44F4-9D04-A0E957A2CBE4}\TypeLib\ = "{CB68B141-87AD-4254-8C82-40FBC02E9C4F}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{22C546B3-94E5-44F4-9D04-A0E957A2CBE4}\TypeLib\ = "{CB68B141-87AD-4254-8C82-40FBC02E9C4F}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{22C546B3-94E5-44F4-9D04-A0E957A2CBE4}\TypeLib\Version = "1.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ca597a82-2168-4960-8601-0ca097cec9b1}\ = "RichMediaViewV1release2757" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ca597a82-2168-4960-8601-0ca097cec9b1}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{22C546B3-94E5-44F4-9D04-A0E957A2CBE4} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{22C546B3-94E5-44F4-9D04-A0E957A2CBE4}\ = "IRichMediaViewV1release2757BHO" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{22C546B3-94E5-44F4-9D04-A0E957A2CBE4}\TypeLib\Version = "1.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{22C546B3-94E5-44F4-9D04-A0E957A2CBE4}\ = "IRichMediaViewV1release2757BHO" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ca597a82-2168-4960-8601-0ca097cec9b1}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CB68B141-87AD-4254-8C82-40FBC02E9C4F}\1.1\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ca597a82-2168-4960-8601-0ca097cec9b1}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{22C546B3-94E5-44F4-9D04-A0E957A2CBE4}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{22C546B3-94E5-44F4-9D04-A0E957A2CBE4}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CB68B141-87AD-4254-8C82-40FBC02E9C4F}\1.1\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{22C546B3-94E5-44F4-9D04-A0E957A2CBE4}\ProxyStubClsid32 regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 228 wrote to memory of 3168 228 regsvr32.exe 84 PID 228 wrote to memory of 3168 228 regsvr32.exe 84 PID 228 wrote to memory of 3168 228 regsvr32.exe 84
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release2757.dll1⤵
- Suspicious use of WriteProcessMemory
PID:228 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release2757.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:3168
-